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Subfamily Ammophilinae
Wasp? Redish body...
Yes, Sphecidae, Ammophilinae.
http://www.whatsthatbug.com/2011/08/04/t...
http://bugs.adrianthysse.com/2014/01/a-t...
https://naturfotografen-forum.de/o166977...
https://naturfotografen-forum.de/o42395-...
http://www.boldsystems.org/index.php/Tax...
3 genera are found in Costa Rica:
Ammophila (which I would tend to), Podalonia and Eremnophila.
http://www.boldsystems.org/index.php/Tax...
http://www.boldsystems.org/index.php/Tax...
http://bugguide.net/node/view/480145/bgp...
To my knowledge there are 4 species of Ammophila found in CR. I would favorite this genus as candidate.
Ammophila procera: http://www.boldsystems.org/index.php/Tax...
Ammophila centralis: http://www.boldsystems.org/index.php/Tax...
Ammophila picipes:
http://www.boldsystems.org/index.php/Tax...
Ammophila gaumeri:
http://www.boldsystems.org/index.php/Tax...
I cannot separate them from each other and I am not sure if it is possible to determine the genus from only this picture without having the native specimen.
Maybe some others may help you more.